An attack by Donald Trump aimed at a conservative campaign donor who has supported him overwhelmingly through the years wasn’t enough for the widow of a megadonor to pull her support, the New York Times reported Wednesday. Reporter Maggie Haberman wrote last week that billionaire supporter Miriam Adelson, the widow of the casino magnate Sheldon Adelson, got an angry set of text messages attacking her and her legitimacy as a conservative. It left the widow “stunned,” the report said, largely because the two had a “friendly meeting” the week prior. Want more breaking political news? Click for th…